Surgical chisel



FIG. 1 is a perspective view of a surgical chisel showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a right side elevational view, the left side elevational view is a mirror image of the right;

FIG. 5 is a top plan view; and

FIG. 6 is a bottom plan view. 

The ornamental design for a surgical chisel, as shown. 